Review of Moody Grenadier 134

Basic specs.

sail specifications
The Moody Grenadier 134 is a large sailboat designed by the British maritime architect Jack Laurent Giles in the early eighties. The Moody Grenadier 134 is built by the British yard A. H. Moody & Son Ltd..

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The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.


The boat is typically equipped with a Perkins 4.236 diesel engine at 72.0 hp (53 kW), which gives a max speed about 6.6 knots.

The fuel tank has a capacity of 568 liters (150 US gallons, 124 imperial gallons).

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Moody Grenadier 134 is 1.70, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.9 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Moody Grenadier 134 is about 289 kg/cm, alternatively 1622 lbs/inch.
Meaning: if you load 289 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1622 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Moody Grenadier 134 is 41.1.

Low High 88% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 88% of all similar sailboat designs. This is a comfort value significantly above average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Moody Grenadier 134 is 3.26.

Slim Wide 62% 0 50 100
Compared with other similar sailboats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Moody Grenadier 134 is 347 which categorizes this boat among 'heavy cruisers'.

Heavy Light 10% 0 50 100
10% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.



If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

Guiding dimensions of running rig
Jib sheet 13.4 m(44.0 feet)16 mm(5/8 inch)
Genoa sheet 13.4 m(44.0 feet)16 mm(5/8 inch)
Mainsheet 33.5 m(110.0 feet)16 mm(5/8 inch)
Spinnaker sheet29.5 m(96.8 feet)16 mm(5/8 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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